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检索条件"主题词=Ruyang"
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Vermiform trace fossils from the Precambrian ruyang Group, western Henan
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Chinese Science Bulletin 1997年 第3期42卷 251-254页
作者: HU Jianmin, MENG Qingren and LI Wenhou1 Xi’ an College of Geology, Xi’an 710054, China 2. Institute of Geophysics, Chinese Academy of Sciences, Beijing 100101, China 3 Department of Geology, Northwest University, Xi’an 710069, China Xi’an College of Geology Xi’an China Institute of Geophysics Chinese Academy of Sciences Beijing China Department of Geology Northwest University Xi’an China
THE origin and evolution of Precambrian lives has been a long-standing controversial problem. It is now generally accepted by most paleontologists that the origin of metazoa can be traced back to more than 1000 Ma, be... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
A New Gigantic Sauropod Dinosaur with the Deepest Known Body Cavity from the Cretaceous of Asia
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Acta Geologica Sinica(English Edition) 2007年 第2期81卷 167-176页
作者: XU Li ZHANG Xingliao HU Weiyong WU Yanhua JIA Songhai JI Qiang Institute of Geology. Chinese Academy of Geological Sciences Beijing 100037 Hen an Geological Museum. Zhengzhou Henan 450016
A new species of sauropod dinosaur Huanghetitan ruyangensis is erected based on the following characters: deepest body cavity with a dorsal rib reaching at least 2.93 m long, anterior caudal vertebrae with mushroom-s... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论